xtdata.download_history_data2 同一股票的前一年分钟数据，分成8个批次下载？这逻辑

2026-05-14 17:12:54 [ INFO] src.market.feed.vendors.miniqmt.miniqmt_market: 准备完成: ['231974.SH'] 1m 数据下载 (miniqmt_market.py:602) 2026-05-14 17:12:54 [ INFO] src.market.feed.vendors.miniqmt.miniqmt_market: 已完成: 231974.SH [1m] (1/8) 数据下载 (miniqmt_market.py:609) 2026-05-14 17:12:54 [ INFO] src.market.feed.vendors.miniqmt.miniqmt_market: 已完成: 231974.SH [1m] (2/8) 数据下载 (miniqmt_market.py:609) 2026-05-14 17:12:54 [ INFO] src.market.feed.vendors.miniqmt.miniqmt_market: 已完成: 231974.SH [1m] (3/8) 数据下载 (miniqmt_market.py:609) 2026-05-14 17:12:54 [ INFO] src.market.feed.vendors.miniqmt.miniqmt_market: 已完成: 231974.SH [1m] (4/8) 数据下载 (miniqmt_market.py:609) 2026-05-14 17:12:54 [ INFO] src.market.feed.vendors.miniqmt.miniqmt_market: 已完成: 231974.SH [1m] (5/8) 数据下载 (miniqmt_market.py:609) 2026-05-14 17:12:54 [ INFO] src.market.feed.vendors.miniqmt.miniqmt_market: 已完成: 231974.SH [1m] (6/8) 数据下载 (miniqmt_market.py:609) 2026-05-14 17:12:55 [ INFO] src.market.feed.vendors.miniqmt.miniqmt_market: 已完成: 231974.SH [1m] (7/8) 数据下载 (miniqmt_market.py:609) 2026-05-14 17:12:55 [ INFO] src.market.feed.vendors.miniqmt.miniqmt_market: 已完成: 231974.SH [1m] (8/8) 数据下载 (miniqmt_market.py:609)

两支股票分成16次下载

{'finished': 1, 'total': 16, 'stockcode': '', 'message': '600031.SH'} {'finished': 2, 'total': 16, 'stockcode': '', 'message': '600031.SH'} {'finished': 3, 'total': 16, 'stockcode': '', 'message': '600031.SH'} {'finished': 4, 'total': 16, 'stockcode': '', 'message': '600031.SH'} {'finished': 5, 'total': 16, 'stockcode': '', 'message': '600031.SH'} {'finished': 6, 'total': 16, 'stockcode': '', 'message': '600031.SH'} {'finished': 7, 'total': 16, 'stockcode': '', 'message': '600031.SH'} {'finished': 8, 'total': 16, 'stockcode': '', 'message': '600031.SH'} {'finished': 9, 'total': 16, 'stockcode': '', 'message': '600111.SH'} {'finished': 10, 'total': 16, 'stockcode': '', 'message': '600111.SH'} {'finished': 11, 'total': 16, 'stockcode': '', 'message': '600111.SH'} {'finished': 12, 'total': 16, 'stockcode': '', 'message': '600111.SH'} {'finished': 13, 'total': 16, 'stockcode': '', 'message': '600111.SH'} {'finished': 14, 'total': 16, 'stockcode': '', 'message': '600111.SH'} {'finished': 15, 'total': 16, 'stockcode': '', 'message': '600111.SH'} {'finished': 16, 'total': 16, 'stockcode': '', 'message': '600111.SH'}

现在message里只有股票代码，而stockcode里反而为空了？是逻辑错误，还是？

按正常的逻辑，分批下载也可以，但是有没有一个返回值告诉分批下载完成的提示。